Super flexible pipe

Abstract

The utility model discloses a super flexible pipe, which relates to the technical field of pipeline connecting equipment, and comprises a pipeline and a flange arranged on the pipeline, a nut is arranged on the flange, an abutting end is arranged on the flange, and the abutting end is clamped with the inner wall of the nut. The abutting end arranged on the flange is connected with the inner wall of the nut in a clamped mode, so that stable connection of the flange and the nut is achieved, stable connection work of the nut and the flange is further achieved, the nut does not deform when the flange and the nut are connected, stable connection of the nut and the butt joint piece is further achieved, and practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection equipment, in particular to a super-flexible pipe. Background Art

[0002] Metal bellows are pipes with a regular wave-like appearance. Commonly used metal bellows include carbon steel, stainless steel, steel with plastic lining, and aluminum. They are primarily used for connecting pipes to pipes or equipment where a very small bending radius is required, non-concentric axial transmission, irregular turns and expansions, or to absorb thermal deformation of pipes, or where fixed elbows are inconvenient to install.

[0003] For example, the publication number CN216666759U disclosed on June 3, 2022, a super-flexible stainless steel corrugated hose for connecting gas appliances, comprising a bellows, a coating wrapped around the outside of the bellows, two flanges fixedly arranged at both ends of the bellows, and two nuts movably sleeved on the flanges, a steel mesh layer is provided between the bellows and the coating, and a steel sleeve for fixing the ends of the coating and the steel mesh layer is provided on the outer fixed sleeve of the flange, and the ends of the coating and the steel mesh layer are pressed between the flange and the steel sleeve. The connection method between the flange and the nut on the pipe disclosed above is a buckle-fastening connection, that is, the flange remains unchanged, and the nut is buckled and tightened on the flange, but the nut structure is changed, and the force is applied on the surface of the nut, which can easily cause the coating on the surface of the nut to fall off, affecting the appearance of the nut, and more easily causing thread deformation, resulting in poor practicality. Summary of the Invention

[0004] The purpose of the present invention is to provide an ultra-flexible tube with higher practicality. The present invention achieves a stable connection between the nut and the flange by clamping the abutting end of the flange with the inner wall of the nut, thereby preventing the nut from deforming, ensuring a stable connection between the nut, flange and pipeline, and further achieving a stable connection between the nut and the docking member, thereby improving practicality.

[0005] To achieve the above purpose, the technical solution adopted by the utility model to solve its technical problems is: an ultra-flexible tube, including a pipeline and a flange arranged on the pipeline, a nut is provided on the flange, and an abutment end is provided on the flange, and the abutment end is clamped with the inner wall of the nut.

[0006] A thread groove is provided in the nut, and an installation groove is provided at one end of the nut connected to the flange. The installation groove is communicated with the thread groove, and the abutment end extends into the installation groove and is clamped with the installation groove.

[0007] The mounting groove is provided with an inclined surface which contacts the abutting end.

[0008] The angle between the inclined surface and the radial direction of the pipeline is 45°.

[0009] A through hole is provided in the flange, and the through hole, the mounting groove and the threaded groove are coaxially arranged.

[0010] Flange and pipe welding.

[0011] The beneficial effects of the utility model are:

[0012] The abutting end provided on the flange is engaged with the inner wall of the nut, thereby achieving a stable connection between the flange and the nut, thereby achieving a stable connection between the nut and the flange, and the nut does not deform when the flange and the nut are connected, thereby achieving a stable connection between the nut and the docking piece, which is more practical;

[0013] The abutting end on the flange extends into the mounting groove on the nut, and after deformation, the abutting end abuts against the groove wall of the mounting groove, thereby realizing the clamping work of the abutting end in the mounting groove. A bevel is provided on the contact side of the abutting end and the mounting groove, thereby ensuring that after the abutting end is deformed, the bevel of the abutting end is stably fitted with the bevel of the mounting groove, thereby realizing a stable connection between the flange and the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the ultra-flexible tube of the utility model.

[0015] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure.

[0016] Figure 3 Schematic diagram of the structure when the abutting end of the flange and nut are connected without deformation.

[0017] In the accompanying drawings: 1-pipeline, 2-flange, 201-through hole, 3-nut, 301-thread groove, 4-abutment end, 5-mounting groove, 6-bevel. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0020] like Figure 1-3 As shown, the ultra-flexible tube includes a pipe 1 and a flange 2 arranged on the pipe 1, a nut 3 is provided on the flange 2, and an abutment end 4 is provided on the flange 2. The abutment end 4 is clamped with the inner wall of the nut 3. When the flange 2 and the nut 3 are connected, the abutment end 4 extends into the nut 3, and the abutment end 4 is deformed and abuts against the inner wall of the nut 3, thereby realizing the connection between the flange 2 and the nut 3.

[0021] By clamping the abutting end 4 provided on the flange 2 with the inner wall of the nut 3, a stable connection between the flange 2 and the nut 3 is achieved, thereby achieving a stable connection between the nut 3 and the flange 2, and the nut 3 does not deform when the flange 2 and the nut 3 are connected, thereby achieving a stable connection between the nut 3 and the docking piece, which is more practical.

[0022] Specifically, a threaded groove 301 is provided in the nut 3, and a mounting groove 5 is provided at one end of the nut 3 connected to the flange 2. The mounting groove 5 is connected to the threaded groove 301, and the abutting end 4 extends into the mounting groove 5. The abutting end 4 is clamped with the mounting groove 5. The abutting end 4 extends into the mounting groove 5, and after deformation, the abutting end 4 abuts against the groove wall of the mounting groove 5, thereby realizing the clamping work of the abutting end 4 in the mounting groove 5, thereby ensuring the communication between the mounting groove 301, the threaded groove 301 and the flange 2.

[0023] The mounting groove 5 is provided with an inclined surface 6 in contact with the abutting end 4 , thereby ensuring that after the abutting end 4 is deformed, the abutting end 4 and the inclined surface 6 of the mounting groove 5 are stably fitted, thereby achieving a stable connection between the flange 2 and the nut 3 .

[0024] Specifically, the angle between the inclined surface 6 and the radial direction of the pipeline 1 is 45°, thereby ensuring that the abutting end 4 on the flange 2 stably abuts against the inclined surface 6 in the nut 3 after deformation, thereby ensuring a stable connection between the flange 2 and the nut 3.

[0025] A through hole 201 is provided in the flange 2. The through hole 201, the mounting groove 5 and the threaded groove 301 are coaxially arranged to ensure that after the flange 2 and the nut 3 are connected, the axes of the pipeline 1, flange 2 and nut 3 coincide with each other, thereby ensuring the quality of the assembled ultra-flexible tube.

[0026] The flange 2 is welded to the pipeline 1, so that the flange 2 and the pipeline 1 are stably connected. Specifically, a welding surface is provided at the end of the flange 2.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultra-flexible tube comprising a tube (1) and a flange (2) arranged on the tube (1), wherein a nut (3) is provided on the flange (2), characterized in that: The flange (2) is provided with an abutting end (4), and the abutting end (4) is clamped with the inner wall of the nut (3).

2. The ultra-flexible tube according to claim 1, characterized in that: A thread groove (301) is provided in the nut (3), and a mounting groove (5) is provided at one end of the nut (3) connected to the flange (2). The mounting groove (5) is communicated with the thread groove (301), and the abutting end (4) extends into the mounting groove (5), and the abutting end (4) is engaged with the mounting groove (5).

3. The ultra-flexible tube according to claim 2, characterized in that: The installation groove (5) is provided with an inclined surface (6) that contacts the abutting end (4).

4. The ultra-flexible tube according to claim 3, characterized in that The angle between the inclined surface (6) and the radial direction of the pipeline (1) is 45°.

5. The ultra-flexible tube according to claim 3, characterized in that: A through hole (201) is provided in the flange (2), and the through hole (201), the mounting groove (5) and the threaded groove (301) are coaxially arranged.

6. The ultra-flexible tube according to any one of claims 1 to 5, characterized in that: The flange (2) is welded to the pipeline (1).

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